Exploring the learning curve for minimally invasive sutureless aortic valve replacement

Area of Science:

• Cardiovascular Surgery
• Minimally Invasive Cardiac Surgery
• Transcatheter Aortic Valve Replacement

Background:

• Sutureless bioprosthesis implantation via right minithoracotomy is an alternative surgical approach.
• Assessing the learning curve and quality of care is crucial for adopting new surgical techniques.

Purpose of the Study:

• To evaluate the learning process and quality of care for right minithoracotomy aortic valve replacement using a sutureless bioprosthesis.
• To analyze the impact of cumulative institutional and individual experience on surgical outcomes.

Main Methods:

• Analysis of the first 300 consecutive patients undergoing sutureless valve implantation via right minithoracotomy.
• Learning curve assessment using sequential probability cumulative sum (CUSUM) failure analysis.
• Quality indicators included technical success and 30-day complications.

Main Results:

• Overall mortality was low (0.7%) with no significant differences between patient tertiles.
• Sutureless valve implantation success rate was high (99%).
• CUSUM analysis indicated no significant learning effect for technical success, though initial surgeon experience varied.

Conclusions:

• Right minithoracotomy sutureless aortic valve replacement can be performed safely with minimal learning curve effects.
• CUSUM analysis is a valuable tool for monitoring surgical performance and identifying areas for improvement.
• Institutional experience positively influences individual learning curves, ensuring consistent quality of care.